Descriptions

The BeagleBone DVI-D Cape is designed to provide DVI-D interface for BeagleBone boards. This board features a standard HDMI connector, which can be connected to a DVI-D monitor using a HDMI-to-DVI-D cable. The video output of the BeagleBone DVI-D Cape is limited to 16-bit so more pins at the expansion headers of BeagleBone can be available for other capes. The output resolution is hardcoded to 1024x768.

Note: The BeagleBone DVI-D Cape only provides DVI-D interface for BeagleBone. No other interfaces are supported by this cape.

FAQ

Revision Changes

Revision A3

The only changes in this revision are PCB silkscreens to accommodate the release of Audio Cape and DVI-D with Audio Cape. No design changes have been made for the BeagleBone DVI-D revision A3.

The PCB revision is also changed from BB-BONE-DVID-PCB-03 to BB-BONE-DVID-PCB-04.

Revision A2

The DVI_PDn signal in revision A2 is moved from pin 42 of connector P2 to pin 20 of connector P1. In revision A1, DVI_PDn signal is mapped to GPIO0_7 which is also a DMA interrupt. By moving DVI_PDn signal, this DMA interrupt is now available for other capeswhen BeagleBone is used with DVI-D Cape. In addition, 4 zero ohm resistors are added to the audio circuitry; however, this addition does not have any effect since the audio circuitry is not populated on DVI-D Cape. Revision A2 should not have any functional difference from previous revisions.

The PCB revision is also changed from BB-BONE-DVID-PCB-02 to BB-BONE-DVID-PCB-03.

Revision A1

PCB Changes

Remove trace from P1.4 to R90

Add DVI-PDn trace from P2.42 to R91

Design Changes

Add 10k pull-up resistor R123 to pin WP of U8

Add Testpoint 2

Production Changes

Red jumper from pin 42 of P2 to R91 is no longer required

BeagleBone DVI-D Rev A and A1 should functional identically. Pull-up resistor and
testpoint are added solely for production purposes.

The PCB revision is also changed from BB-BONE-DVID-PCB-01 to BB-BONE-DVID-PCB-02.

Revision A

Initial release of BeagleBone DVI-D Cape.

Software Support

BeagleBone DVI-D Cape revision A and A1 are supported by Angstrom release 02-14-12 or later.

Please follow the instructions here to write the image file to your SD card on a Windows machine.

Getting Started

Required setup:

A BeagleBone DVI-D Cape

A BeagleBone (with supported software)

A Power supply (either 5V DC supply or USB cable)

An LCD monitor that supports DVI-D and 1024x768 resolution.

An HDMI-to-DVI-D cable

USB keyboard/mouse (optional)

Following the instructions below to start using your BeagleBone DVI-D Cape:

Power off your BeagleBone

Mount the BeagleBone DVI-D on top of BeagleBone.

Note: The Ethernet connector on BeagleBone should fit right into the cutback on BeagleBone DVI-D.

Make sure the micro SD card using with BeagleBone has latest Angstrom image.

Connect the BeagleBone DVI-D Cape to a DVI-D supported monitor using an HDMI-to-DVI-D cable. The HDMI end of the cable should be plugged into the HDMI port on the DVI-D Cape. The DVI-D end of the cable should be plugged into the DVI-D input of the monitor.

Note: The DVI-D is hardcoded to provide an output resolution of 1024x768. Please ensure your monitor supports this resolution.

Note: Only plug in or unplug the HDMI cable when the board is not powered. Hot plugging or unplugging while the board is powered on may damage the board or cable.

Make sure the monitor is powered on. Power up the BeagleBone.

You should see a BeagleBone logo, the Angstrom log-in prompt, and eventually the Angstrom desktop. The photo on the right shows the log-in prompt when using BeagleBone DVI-D A1 with Angstrom release 02-14-12.

By connecting a USB keyboard, you can type onto the console and this will be displayed on the monitor as well.

BeagleBone DVI-D Revision A

Pre-Released Version

Note: BeagleBone DVI-D Capes are normally shipped with their EEPROM already programmed, so user will not need to program their EEPROMs. However, some BeagleBone DVI-D Capes that were shipped early for development purposes did not have the EEPROM programmed. This is because the software needed to program EEPROM was still in process. Therefore, early users can follow these steps to temporarily program and test their EEPROMs.

Physically lift pin 7 of U8 on the BeagleBone DVI-D Cape so you can program the EEPROM